Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 29, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill By Reporting Unit

The changes in the carrying amount of goodwill by reporting unit were as follows:

	Aerospace		Combat Systems			Information Technology		Mission Systems			Marine Systems		Total Goodwill
December 31, 2019 (a)	$	2,831	$	2,681		$	9,700	$	4,168		$	297	$	19,677
Acquisitions (b)	20		—			—		—			—		20
Other (c)	20		(58		)	—		(6		)	—		(44		)
March 29, 2020 (a)	$	2,871	$	2,623		$	9,700	$	4,162		$	297	$	19,653

(a)Goodwill in the Information Technology and Mission Systems reporting units is net of $536 and $1.3 billion of accumulated impairment losses, respectively.

(b)Includes a business acquired in our Aerospace segment and adjustments during the purchase price allocation period.

(c)Consists primarily of adjustments for foreign currency translation.

Intangible Assets

Intangible assets consisted of the following:

	Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount (a)		Accumulated Amortization			Net Carrying Amount
	March 29, 2020							December 31, 2019
Contract and program     intangible assets (b)	$	3,784	$	(1,839	)	$	1,945	$	3,776	$	(1,779	)	$	1,997
Trade names and trademarks	478		(201		)	277		474		(195		)	279
Technology and software	164		(128		)	36		164		(126		)	38
Other intangible assets	158		(157		)	1		159		(158		)	1
Total intangible assets	$	4,584	$	(2,325	)	$	2,259	$	4,573	$	(2,258	)	$	2,315

(a) Changes in gross carrying amounts consist primarily of adjustments for acquired intangible assets and foreign currency translation.

(b)

Consists of acquired backlog and probable follow-on work and associated customer relationships.